Concrete-paving machine.



R. DEEDS.

CONCRETE PAVING MACHINE.

APPLICATION FILED SEPT. 22, 1909.

Patented Mar. 22, 1910.

5 SHEETS-SHEET l.

K T E E H B S T E E H S 5 0 1 9 11 2 2 R a M d 8 Lb n 6 t a P R. DEEDS. CONGRETE PAVING MACHINE. APPLICATION FILED SEPT. 22, 1909.

HHHUHH LHHHHHH ANDREW a GRAHAM co Puorouwoswnwens. wAsmNawm o c.

Patented Mar. 22, 1910.

6 SHEETS-SHEET 3.

furor/mug ANDREW a. GRAHAM c0, PHOTO-LITNOGRAPAERS WASHINGTON. ac.

Patented Mar. 22, 1910.

5 SHEETS-SHEET 4.

ANDREW a GRAHAM co.. PHOYO-UTNOGRAPHHS. wnsmnarou, 0 c.

w MANN \Q R DEEDS CONCRETE PAVING MACHINE.

APPLICATION FILED SEP'1.22, 1909.

R. DEEDS.

CONCRETE PAVING MACHINE.

APPLIGATION FILED SEPT. 22, 1909.

Patented Mar. 22, 1910.

6 SHEETSSHEET 6.

ANDREW a GRAHA-M co.. Puo-ro-umumwaens, WASHWGTON, o. c.

CONCRETE-PAVING- MACHINE.

Specification of Letters Patent.

Patented Mar. 22, 1910.

Application filed September 22, 1909. Serial No. 518,976.

To all whom it may concern:

Be it known that I, REED DEnDs, citizen of the United States, residing at Cuyahoga Falls, in the county of Summit and State of Ohio, have, invented certain new and useful Improvements in Concrete-Paving Machines, of which the following is a specification.

This invention relates to concrete paving machines, and has for its object the production of a machine embodying means for feeding and combining the desired ma terials, for compressing the same, for laying the same, and for finishing the pavement by tamping and floating.

The machine constituting this invention comprises various parts having special construction and particular arrangement substantially as set forth in the accompanying drawings, of which Figure 1 represents a side view of all the parts assembled, and Fig. 2 a top plan view thereof. Fig. 3 is an enlarged vertical section of the hopper and drum, and of the presserhead and devices for feeding the division bars. Fig 1 is a cross-section of the lower part of the main frame introduced to illustrate the preferred form of track and the rollers or wheels therein. Figs. 5 and 6 are sections of the upper portion of the drum taken on a vertical plane passing through the axis of the drum, showing from front and rear respectively, the lever for stopping the drum when desired, the movable blocks in the flange of the drum, and.

the means for moving the blocks inwardly as the drum revolves. Fig. 7 1s an outside plan view of one of the movable blocks in the flange of the drum, a portion of the flange being shown. Figs. 8 and 9 are respectively side views and sectional views of the movable block in the flange of the drum, taken on lines ov and g of Fig. 7. Fig. 10 is a top view of the push arm which moves the blocks inwardly. In this view the standard supporting the push arm is shown in section on line 22 of Fig. 5. Fig. 11 is a section of the lower portion of the drum on a vertical plane passing through the axis of the drum, and shows the movable blocks in the flange of the drum and the devices for drawing them outwardly. Fig. 12 is a top plan View of the forward part of the drum and machine frame, with thehopper, the presserhead and its operating members omitted to disclose the forms of the stationary and sliding tables upon which the division bars are carried. Fig. 13 is an outside plan view of one of the movable blocks in the flange of the drum and shows the inclined form of the body of the double hook arm which draws the blocks outwardly. Fig. 14 shows a side view of one of the interrupted gears engaging the tamper staff. Fig. 15 is a fragmentary section on line 'w w of Fig. 1, introduced to show the manner of connecting the eccentric rod and presserhead.

The same number refers to the same part throughout the description and drawings.

A machine frame 1 is ordinarily made up of angle steel, and is provided with rollers 2 running in a grooved track 3 laid temporarily for them. A hopper 4 is divided usually into compartments by an adjustable partition 5, movable toward or from the drum 6 and between the flanges 7 thereof. The drum revolves loosely on the main cross shaft 8, and the drum may be reinforced by spiders 9 internally disposed. See Figs. 5, 6, and 11.

In Figs. 1, 3 and 6 it is shown that the flange of the drum is pierced at intervals with openings 10, and blocks 11 occupy those openings movably. The faces of the blocks presented inwardly are each provided with a groove 12, extending radially with respect to the drum. On the outside, that is to say, the side of the blocks 11 presented outwardly, each block is provided with a plane 18, inclined in one direction and usually occupying the middle of the block, and plates 1% and 15, inclined in the opposite direction and having edges projecting over the sides as shown. The blocks are prevented from leaving the openings 10 in either direction by the straps 16 and 17 extending across the blocks under the overhang of the inclined plates and secured to the flange 7 of the drum. Upon each side of the ends of drum 6 there is placed on main shaft 8 an eccentric 18, arranged to give a reciprocative motion to the rod 19, which passes behind the uprights 20 of the frame and terminates in a. threaded end 21. By means of nuts 22 and 23, as best shown in Fig. 15, the eccentric rod 19 is connected with the rocking bracket 24, and the bracket is pivotally connected by pin 25 with the standard 26 set a little way back from the end of the presserhead 27, in order that the connections may pass between the flanges of the drum without striking them or other adjacent parts. In Fig. 3 it will be noted that the presserhead has an extended top 28 lo cated immediately under the bottom flange 29 of the hopper wall, and between the extensions 30 of the side walls of the hopper. There is a slight distance between the top 28 of the presserhead and the flange 29 of the hopper to allow the presserhead to rise slightly as will be further explained. It maybe stated here that the presserhead cannot tilt much during its movement without bringing its top 28 against the flange 29 of the hopper. Thus, the presserhead is com pelled to move as a whole backward and forward without materially varying the inclination of its body portion illustrated.

Considering Figs. 3 and 12, it will be noted that the lower edge of the presserhead rests upon three separated parts marked 31, 32, and 33, of a table that extends a small distance between the flanges of the drum. Those table parts are supported by a transverse bar 34, which is also the upper portion and support of the curved apron 35 shown in Figs. 1 and 3 extending downwardly between the flanges of the drum. One division bar 36 is shown upon the table parts 31, 32, and 33 between the flanges of the drum and in front of the lower edge of the presserhead. Other division bars are shown upon the sliding table 37, which is movable upon suitable side supports 38 and 39. In Fig. 3 it will be observed that the vertically-movable catch 40 in the stationary table 31 is depressed by the lower edge of the presserhead, but, it is thought to be clear that were the presser head removed, the weighted lever 41 beneath the table would raise the catch 40 in front of the division bar lying upon the table parts 31, 32, and 33. Other vertically-movable catches 42 are provided in the sliding table 37, and they are normally upheld with their inclined tops projecting above the surface of table 37. The levers 43 carried below the table and provided with weighted ends 44 serve to hold up the catches. The division bars 36 are stacked for service in the box 45 near the forward end of the machine frame, but, as those bars in any number are heavy, it is desirable that too great number of bars be not placed in box 45 at one time, in order that the sliding movement .of the table 37 which serves the bars as hereafter explained may not be obstructed. Immediately above the division bars on the table 37, and extending lengthwise of the machine frame are the bridge bars 46 and 47 bearing the pawls 48, as best shown in Figs. 3 and 12. The sliding table 37 is moved back and forth upon its supports by the presserhead, and as has been previously stated, the presserhead T needs to be permitted a slight rise and fall. Therefore, the presserhead is provided with a bracket 49 upon which is an upwardlyextended curved pin 50 that passes movably through the bracket arm 51 attached to the side of the sliding table 37. Thus, although the presserhead may rise and fall slightly, its connection with the sliding table imparting movement thereto back and forth is never disengaged. Below the bracket 49 a C spring 52 is shown bearing downwardly upon a division bar. The spring will be mentioned herein again.

As best shown in Figs. 1 and 2, the main gear on shaft 8, is driven by the pinion 54 turned by crank 55. The main gear 53 drives the intermediate gear 56, which in turn drives the windlass gear 57 on windlass shaft 58. The windlass is marked 59 and the cable 60. The windlass is loose on shaft 53 save when connected therewith by the clutch 61, best shown in Fig. 2. The clutch is operated by a hand lever 62 through the connecting rod 62, all of ordinary construction and operation.

In Fig. 2 are illustrated the push-arm 63 arranged to move the blocks 11 inwardly, and the standard 64 supporting the pusharm, and supporting also the lever 65. The lever 65 is provided with a cam end and when the handle of the lever is depressed, the end bears against the flange 7 of the drum and the drum may be stopped at any point found necessary during the operation. The push-rod 63, supporting standard 64, and lever 65 are all set forth in Figs. 1, 5 and 6 of the drawings. On the left of the main gear 53 is a smaller gear 69 on transverse shaft 70. All gears described thus far are located upon the outside of the frame. ithin the frame on shaft 70, as best shown in Fig. 2, are the interrupted gears 71 which engage the staff 72 of the tamper. The form of the interrupted gears is best shown in Fig. 14. he staff 72 slides up and down in guides 73 attached to the machine frame, and the tamper 74 is attached to the lower end of the staff as shown in Fig. 1. The tamper strikes upon a tamper plate 75, pivotally atplate is a sprinkler cylinder 76 for keeping the concrete in a suitably moist condition and to enable the top coat to be properly floated. Upon the shaft is likewise the a fellow sprocket 79 on the cross shaft 80. A miter gear 81 on shaft drives a miter gear 82 on a vertical shaft 83, and rotates the float disk 84 on the lower end of shaft 33. As shown in Fig. 2 there is also on shaft 80 the gear 85 that meshes with gear 86 and drives shaft 87. Upon the shaft 87 is the miter gear 83 which engages the miter gear 89 on vertical shaft 90 and rotates the second float disk 91 at the end of the shaft 90.

tached to frame 1, and adjacent to the tamper sprocket 77, connected by the chain 78 with it the flange of the drum successively into con presserhead comes between the side plates 92 The operation of this invention may be eX- I plained as follows: Assume the smaller compartment of the hopper 4 to be filled with top coat material and the larger compartment with coarser material to form the lower part of the pavement to be constructed. The drum is loose on shaft 8 and may be if necessary turned by hand. As the drum turns, a layer of top coat material will rest against the drum between the flanges, and the thickness of the layer will depend upon the distance of the lower edge of the adjustable partition 5 from the drum. As the drum revolves, the coarser material in the larger compartment of the hopper descends upon the layer of top coat. That is to say, the top coat is now at the bottom of the mass. As the drum revolves, it also brings the in clined planes 13 of the movable blocks 11 in tact with the push-arm 63 and the blocks are pushed inwardly and project between the flanges 7. When the drum is in the position illustrated in Fig. 1, with the grooves 12 in two opposite blocks so placed as to receive a division bar 36, which is a flat plate of metal as customarily constructed and of suitable thickness to pass into the grooves, the crank is turned, with the result thatthe presserhead is drawn toward the axis of the drum compressing the mass of concrete from the bottom and forcing a division bar into it. During the operation of compressing the concrete between the flanges of the drum, the clutch (31 is disengaged and the frame is stationary. As soon as the presserhead has reached its inward limit of movement, the clutch 61 is engaged and the cable drawn upon thus moving the machine forward as the presserhead is withdrawn from between the flanges. t is desirable that this forward movement shall be approximately the distance between the centers of adjacent blocks 11, and the parts are proportioned in practice with that end in view. As the frame is drawn along, the drum is revolved, its flange being in contact with the ground, as shown in Fig. 1, and the compressed concrete descends against the apron 35 until it reaches the ground, when the top coat is upon the upper surface of the mass as intended. The machine as a whole is drawn forward step by step, and the concrete compressed by the by which it is held while being further compressed by the tamper and finished by the floating disks and any other forming devices commonly employed in such work.

Considering Fig. 3 of the drawings, which represents a vertical section on a plane best indicated by the indirect broken line of Fig. 12, the mechanism for feeding the division bars is illustrated. The grooves in blocks 11 act as division bar guides, and the barsv are broughtone after another upon the table comprising the stationary parts 31, 32, and 33, where each is held in the path of the presserhead and forced into the concrete by the action of the presserhead. WVhen the presserhead has acted upon one division bar and begins its movement outwardly from between flanges 7, itencounters another divi sion bar on the stationary table, and rises upon the upper surface of the bar and falls beyond the other edge of the bar. The division bar upon the table cannot move outwardly, or, toward the right in Fig. 3, because the catches have risen through the table next to the bar, and prevent such movement. The division bar on the table cannot be displaced upwardly, because the C- spring 52 holds it yieldingly down upon the table. It will be noted that division bars are held between each row of catches 2 with which the sliding table 37 is provided. \Vhen table 37 moves toward the drum it carries the bars with it, but when it moves from the drum the pawls 5L8, on bridge bars 40 and 17, prevent the bars from a reversal of movement. Thus the bars are fed one after another into position in the path of the presserhead. It will be understood that the sliding table takes the bottom bar 36 from box at each movement of the table toward the drum.

The division bars remain in the concrete deposited by the drum until the concrete has set or hardened slightly, when the bars are removed by hand with ordinary blacksmiths tongs. The spaces remaining after removal of the division bars, allow for the expansion of the portions or sections into which the concrete was divided by the bars. In order that the division bars deposited in the concrete may not be displaced as the drum continues to revolve, the grooved blocks 11 are withdrawn by means of the engagement of the inclined double hook 93 and the inclined plates 1% and 15, as illustrated in Figs. 11 and 13, until the grooved faces of blocks 11 are flushwith the inside surfaces of flanges 7, as shown in Figs. 8 and 9, and the division bars are left in the deposited concrete until removed by hand as stated.

Having now described this invention, and explained its operation, what I claim is 1. In a concrete paving machine, the combination with a presserhead and operating means therefor, of a pivoted device arranged to receive the materials forming the concrete and adapted to present the bottom of the concrete mass to the presserhead for the action of the presserhead, the said device being further adapted to lay the concrete upon the ground with the bottom of the mass in contact with the ground, and an apron arranged near said device to guide the concrete therein to the ground.

2. In a concrete paving machine, the combination with a presserhead and operating means therefor, of a hopper constructed and arranged to feed the materials forming the concrete, a pivoted device arranged below the hopper to receive the materials and adapted to present the bottom of the concrete mass to the presserhead for the action of the presserhead, the said device being further adapted to lay the concrete with the bottom of the mass upon the ground, and an apron arranged near said device to guide the concrete therein to the ground.

3. In a concrete paving machine the combination with a presserhead and operating means therefor, of a pivoted device arranged to receive the materials forming the concrete and adapted to present the bottom of the concrete mass to the presserhead for the action of the presserhead, the said device being further adapted to lay the concrete with the bottom of the mass upon the ground, an apron arranged near said device to guide the concrete thereinto the ground, and means constructed to hold the said pivoted device at any point.

4. In a concrete paving machine, the com- 2 bination with a presserhead and operating means therefor, of a pivoted device arranged to receive the materials forming the concrete and adapted to present the bottom of the concrete mass to the presserhead for the action of the presserhead, a table supported adjacent to the said device, a division bar arranged upon the table in the path of the presserhead whereby the action of the presserhead forces the division bar into the con crete, the said device being further adapted to lay the concrete with the bottom of the mass upon the ground, and an apron arranged near said device to guide the concrete therein to the ground.

5. In a concrete paving machine, the combination with a presserhead and operating means therefor, of a pivoted device ar ranged to receive the materials forming the concrete and adapted to present the bottom of the concrete mass to the presserhead for the action of the presserhead, a table supported adjacent to the said device, a division bar arranged upon the table in the path of the presserhead whereby the action of the presserhead forces the division bar into the concrete, means constructed to feed division bars one after another into said position, the said device being further adapted to lay the concrete with the bottom of the mass upon the ground, and an apron arranged near said device to guide the concrete therein to the ground.

6. In a concrete paving machine, the combination witha frame having parallel side bars near the round, of a presserhead and operating means therefor, a pivoted device arranged to receive the materials forming the concrete and adapted to present the bottom of the concrete mass to the presserhead for the act-ion of the presserhead, the said device being further adapted to lay the concrete between the said side bars with the bottom of the mass upon the ground, and an apron arranged near said device to guide the concrete therein to the ground.

7. In a concrete paving machine, the combination with a frame having parallel side bars near the ground, of a presserhead and operating means therefor, a pivoted device arranged to receive the materials forming the concrete and adapted to present the bottom of the concrete mass to the presserhead for the action of the presserhead, *a table supported adjacent to the said device, a division bar arranged upon the table in the path of the presserhead whereby the action of the presserhead forces the bar into the concrete in said device, the said device being further adapted to lay the concrete and division bar between the said parallel side bars with the bottom of the mass upon the ground, and an apron arranged near said device to guide the division bar and concrete therein to the ground.

8. In a concrete paving machine, the combination with a frame having'parallel side bars near the ground, of a presserhead and operating means therefor, a pivoted device arranged to receive the materials forming the concrete and adapted to present the bot tom of the concrete mass to the presserhead for the action of the presserhead, a table supported adjacent to the said device, a division bar arranged upon the table in the path of the presserhead whereby the action of the presserhead forces the bar into the concrete in said device, means constructed to feed division bars one after another into the said position, the said device being further adapted to lay the concrete and division bars between the said parallel side bars with the bottom of the mass upon the ground, and an apron arranged near said device to guide the concrete and division bars therein to the ground.

9. In a concrete paving machine, the combination with a presserhead and operating means therefor, of a revoluble drum having flanges and arranged to receive the materials forming the concrete between the flanges, the said drum being arranged to present the bottom of the concrete mass to the presserhead for the action of the presserhead, the said drum being further adapted to lay the concrete with the bottom of the mass upon the ground, and an apron arranged near said drum to guide the concrete between the flanges of the drum to the ground.

10. In a concrete paving machine, the combination with a presserhead and operating means therefor, of a hopper constructed and arranged to feed the materials forming the concrete, a revoluble drum having flanges and arranged to receive the ma terials from the hopper between the flanges, the said drum being arranged to present the bottom of the concrete mass to the presserhead for the action of the presserhead, and the said drum being further adapted to lay the concrete with the bottom of the mass upon the ground, and an apron arranged near the said drum to guide the concrete between the flanges of the drum to the ground.

11. In a concrete paving machine the combination with a presserhead and operating means therefor, of a revoluble drum having flanges and arranged to receive the materials forming the concrete between the flanges, the said drum being arranged to present the bottom of the concrete mass to the presserhead for the action of the presserhead, the said drum being further adapted to lay the concrete with the bottom of the mass upon the ground, an apron arranged near the drum to guide the concrete between the flanges of the drum to the ground, and means constructed and disposed to hold the drum at any point against rotation.

12. In a concrete paving machine, the combination with a presserhead and operating means therefor, of a revoluble drum having flanges and arranged to receive the materials forming the concrete between the flanges, the said drum being arranged to present the bottom of the concrete mass to the presserhead for the action of the presserhead, a table supported adjacent to the flanges of the drum, a division bar arranged upon the table in the path of the presserhead whereby the action of the presserhead forces the division bar into the concrete, the said drum being further adapted to lay the concrete with the bottom of the mass upon the ground, and an apron arranged near said drum to guide the concrete between the flanges of the drum to the ground.

13. In a concrete paving machine the combination with a presserhead and operating means therefor, of a revoluble drum having flanges and arranged to receive the materials between the flanges, the said drum being arranged to present the bottom of the concrete mass to the presserhead for the action of the presserhead, a table supported adjacent to the flanges of the drum and arranged to support a division bar in the path of the presserhead whereby the action of the presserhead forces the division bar into the concrete, means constructed to feed division bars one after another into the said position, the said drum being further adapted to lay the concrete with the bottom of the mass upon the ground, and an apron arranged near the said drum to guide the di vision bar and concrete to the ground.

14. In a concrete paving machine, the combination with a frame having parallel side bars near the ground, of a presserhead and operating means therefor, a revoluble drum having flanges and arranged to receive the materials forming the concrete between the flanges, the said drum being arranged to present the bottom of the concrete mass to the presserhead for the action of the presserhead, the said drum being further adapted to lay the concrete between the said side bars with the bottom of the mass upon the ground, and an apron arranged near the said drum to guide the concrete to the ground.

15. In a concrete paving machine, the combination with a frame having parallel side bars near the ground, of a presserhead and operating means therefor, a revoluble drum having flanges and arranged to receive the materials forming the concrete between the flanges, the said drum being ar ranged to present the bottom of the concrete mass to the presserhead for the action of the presserhead, a table supported adjacent to the flanges of the drum and arranged to support a division bar in the path of the presserhead whereby the action of the presserhead forces the division bar into the concrete, the said drum being further adapted to lay the concrete and division bar between the said side bars with the bottom of the mass upon the ground, and an apron arranged near the said drum to guide the concrete and division bars to the ground.

16. In a concrete paving machine, the combination with a frame having parallel side bars near the ground, of a presserhead and operating means therefor, a revoluble drum having flanges and arranged to receive the materials forming the concrete between the flanges, the said drum being arranged to present the bottom of the concrete mass to the presserhead for the action of the presserhead, a table supported adjacent to the flanges of the drum and adapted to support a division bar in the path of the presserhead whereby the action of the presserhead forces the division bar into the concrete, means constructed to feed division bars one after another into the said position, the said drum being further adapted to lay the concrete and division bars between the said side bars with the bottom of the mass upon the ground, and an apron arranged near the said drum to guide the concrete and division bars to the ground.

17. In a concrete paving machine, the combination with a presserhead and operating means therefor, of a revoluble drum having flanges and arranged to receive the materials forming the concrete between the flanges, the said drum being arranged to present the concrete mass to the presserhead for the action of the presserhead, an apron arranged adjacent to the flanges of the drum and extending downwardly, and the said drum and apron being adapted to lay the concrete with the bottom of the mass upon the ground.

18. In a concrete paving machine, the combination with a frame having parallel side bars near the ground, of a presserhead and operating means therefor, a revoluble drum having flanges and arranged to receive the materials forming the concrete between the flanges, the said drum being arranged to present the bottom of the concrete mass to the presserhead for the action of the presserhead, an apron arranged adjacent to the flanges of the drum and extending downwardly, and the said drum and apron being adapted to lay the concrete between the said side bars with the bottom of the mass upon the ground.

19. In a concrete paving machine, the combination with a frame, of a revoluble drum within the frame having flanges, division bar guides arranged at intervals around the drum, means constructed and arranged at one point of the said flanges for moving said guides into position between the said flanges, and means constructed and arranged at a different point of said flanges for withdrawing the guides from between the flanges.

20. In a concrete paving machine, the combination with a frame, of a revoluble drum within the frame having flanges, the said flanges having openings at intervals, blocks arranged in said openings and each block having a groove arranged radially with respect to the drum and adapted to act as division bar guides, means arranged at one point of said flanges for moving the said blocks into position between the flanges of the drum, and means arranged at another point of the flanges for withdrawing the blocks from between the flanges.

21. In a concrete paving machine, the combination with a frame, of a revoluble drum within the frame having flanges, the said flanges having openings at intervals, blocks arranged in said openings and each block having a groove arranged radially with respect to the drum and adapted to act as division bar guides, the said blocks having each a plane inclined in one direction, and projecting plates inclined in a different direction, means arranged at one point of the flanges for moving the blocks into position between the said flanges of the drum, and means arranged at another point of the flanges for withdrawing the blocks, the said means for positioning the blocks being arranged to act upon said inclined planes, and the said withdrawing means being arranged to act upon the said inclined plates.

22. In a concrete paving machine, the combination with a frame having a drum shaft and a windlass shaft, of a drum revoluble upon the drum shaft and having flanges adapted to touch the ground upon which the frame is placed, a presserhead and operating means therefor, a windlass upon the said windlass shaft, gearing actuated by the said operating means, and a clutch arranged to connect and disconnect the said windlass and gearing.

In testimony whereof I aflix my signature in presence of two witnesses.

REED DEEDS.

Witnesses M. M. MoLANn, G. N. RUssnLL. 

